Also the editor insisted that at the end of Death Note, the hero should be punished for his evil actions. Because weekly Shounen Jump has many young readers (starting from elementary school) they feared complaints from parents. (yes Japan has socccer moms too)

Had the series been shounen, the ending might have been more unconventionnal.

2) The Hell Girl manga is precisely aimed squarely at girls under 12 years old of age despite the ridiculous rating of older teen made by the publisher (published in Nakayoshi the magazine where Sailor Moon and Card Captor Sakura were published) that’s why the manga shows 12 year old girls who sell their souls.